766f89c724
This commit does two things, it removes the "Quiet" flag from the flash target so you can see what it is trying to do when it trys to flash your code, and it adds a make target print-% which can be used to print the resolved value of make variables (also helpful in figuring out what it is trying to do).
271 lines
7.6 KiB
Makefile
271 lines
7.6 KiB
Makefile
##
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## This file is part of the libopencm3 project.
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##
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## Copyright (C) 2009 Uwe Hermann <uwe@hermann-uwe.de>
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## Copyright (C) 2010 Piotr Esden-Tempski <piotr@esden.net>
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## Copyright (C) 2013 Frantisek Burian <BuFran@seznam.cz>
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##
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## This library is free software: you can redistribute it and/or modify
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## it under the terms of the GNU Lesser General Public License as published by
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## the Free Software Foundation, either version 3 of the License, or
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## (at your option) any later version.
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##
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## This library is distributed in the hope that it will be useful,
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## but WITHOUT ANY WARRANTY; without even the implied warranty of
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## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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## GNU Lesser General Public License for more details.
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##
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## You should have received a copy of the GNU Lesser General Public License
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## along with this library. If not, see <http://www.gnu.org/licenses/>.
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##
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# Be silent per default, but 'make V=1' will show all compiler calls.
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ifneq ($(V),1)
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Q := @
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NULL := 2>/dev/null
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endif
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###############################################################################
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# Executables
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PREFIX ?= arm-none-eabi
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CC := $(PREFIX)-gcc
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CXX := $(PREFIX)-g++
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LD := $(PREFIX)-gcc
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AR := $(PREFIX)-ar
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AS := $(PREFIX)-as
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OBJCOPY := $(PREFIX)-objcopy
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OBJDUMP := $(PREFIX)-objdump
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GDB := $(PREFIX)-gdb
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STFLASH = $(shell which st-flash)
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STYLECHECK := /checkpatch.pl
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STYLECHECKFLAGS := --no-tree -f --terse --mailback
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STYLECHECKFILES := $(shell find . -name '*.[ch]')
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OPT := -Os
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CSTD ?= -std=c99
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###############################################################################
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# Source files
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OBJS += $(BINARY).o
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ifeq ($(strip $(OPENCM3_DIR)),)
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# user has not specified the library path, so we try to detect it
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# where we search for the library
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LIBPATHS := ./libopencm3 ../../../../libopencm3 ../../../../../libopencm3
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OPENCM3_DIR := $(wildcard $(LIBPATHS:=/locm3.sublime-project))
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OPENCM3_DIR := $(firstword $(dir $(OPENCM3_DIR)))
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ifeq ($(strip $(OPENCM3_DIR)),)
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$(warning Cannot find libopencm3 library in the standard search paths.)
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$(error Please specify it through OPENCM3_DIR variable!)
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endif
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endif
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ifeq ($(V),1)
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$(info Using $(OPENCM3_DIR) path to library)
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endif
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define ERR_DEVICE_LDSCRIPT_CONFLICT
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You can either specify DEVICE=blah, and have the LDSCRIPT generated,
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or you can provide LDSCRIPT, and ensure CPPFLAGS, LDFLAGS and LDLIBS
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all contain the correct values for the target you wish to use.
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You cannot provide both!
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endef
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ifeq ($(strip $(DEVICE)),)
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# Old style, assume LDSCRIPT exists
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DEFS += -I$(OPENCM3_DIR)/include
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LDFLAGS += -L$(OPENCM3_DIR)/lib
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LDLIBS += -l$(LIBNAME)
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LDSCRIPT ?= $(BINARY).ld
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else
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# New style, assume device is provided, and we're generating the rest.
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ifneq ($(strip $(LDSCRIPT)),)
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$(error $(ERR_DEVICE_LDSCRIPT_CONFLICT))
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endif
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include $(OPENCM3_DIR)/mk/genlink-config.mk
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endif
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SCRIPT_DIR = $(OPENCM3_DIR)/scripts
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###############################################################################
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# C flags
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TGT_CFLAGS += $(OPT) $(CSTD) -g
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TGT_CFLAGS += $(ARCH_FLAGS)
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TGT_CFLAGS += -Wextra -Wshadow -Wimplicit-function-declaration
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TGT_CFLAGS += -Wredundant-decls -Wmissing-prototypes -Wstrict-prototypes
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TGT_CFLAGS += -fno-common -ffunction-sections -fdata-sections
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###############################################################################
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# C++ flags
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TGT_CXXFLAGS += $(OPT) $(CXXSTD) -g
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TGT_CXXFLAGS += $(ARCH_FLAGS)
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TGT_CXXFLAGS += -Wextra -Wshadow -Wredundant-decls -Weffc++
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TGT_CXXFLAGS += -fno-common -ffunction-sections -fdata-sections
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###############################################################################
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# C & C++ preprocessor common flags
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TGT_CPPFLAGS += -MD
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TGT_CPPFLAGS += -Wall -Wundef
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TGT_CPPFLAGS += $(DEFS)
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###############################################################################
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# Linker flags
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TGT_LDFLAGS += --static -nostartfiles
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TGT_LDFLAGS += -T$(LDSCRIPT)
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TGT_LDFLAGS += $(ARCH_FLAGS)
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TGT_LDFLAGS += -Wl,-Map=$(*).map
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TGT_LDFLAGS += -Wl,--gc-sections
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ifeq ($(V),99)
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TGT_LDFLAGS += -Wl,--print-gc-sections
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endif
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###############################################################################
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# Used libraries
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LDLIBS += -Wl,--start-group -lc -lgcc -lnosys -Wl,--end-group
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###############################################################################
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###############################################################################
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###############################################################################
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.SUFFIXES: .elf .bin .hex .srec .list .map .images
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.SECONDEXPANSION:
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.SECONDARY:
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all: elf
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elf: $(BINARY).elf
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bin: $(BINARY).bin
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hex: $(BINARY).hex
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srec: $(BINARY).srec
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list: $(BINARY).list
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images: $(BINARY).images
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flash: $(BINARY).flash
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# Either verify the user provided LDSCRIPT exists, or generate it.
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ifeq ($(strip $(DEVICE)),)
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$(LDSCRIPT):
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ifeq (,$(wildcard $(LDSCRIPT)))
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$(error Unable to find specified linker script: $(LDSCRIPT))
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endif
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else
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include $(OPENCM3_DIR)/mk/genlink-rules.mk
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endif
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# Define a helper macro for debugging make errors online
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# you can type "make print-OPENCM3_DIR" and it will show you
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# how that ended up being resolved by all of the included
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# makefiles.
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print-%:
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@echo $*=$($*)
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%.images: %.bin %.hex %.srec %.list %.map
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@#printf "*** $* images generated ***\n"
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%.bin: %.elf
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@#printf " OBJCOPY $(*).bin\n"
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$(Q)$(OBJCOPY) -Obinary $(*).elf $(*).bin
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%.hex: %.elf
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@#printf " OBJCOPY $(*).hex\n"
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$(Q)$(OBJCOPY) -Oihex $(*).elf $(*).hex
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%.srec: %.elf
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@#printf " OBJCOPY $(*).srec\n"
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$(Q)$(OBJCOPY) -Osrec $(*).elf $(*).srec
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%.list: %.elf
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@#printf " OBJDUMP $(*).list\n"
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$(Q)$(OBJDUMP) -S $(*).elf > $(*).list
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%.elf %.map: $(OBJS) $(LDSCRIPT)
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@#printf " LD $(*).elf\n"
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$(Q)$(LD) $(TGT_LDFLAGS) $(LDFLAGS) $(OBJS) $(LDLIBS) -o $(*).elf
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%.o: %.c
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@#printf " CC $(*).c\n"
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$(Q)$(CC) $(TGT_CFLAGS) $(CFLAGS) $(TGT_CPPFLAGS) $(CPPFLAGS) -o $(*).o -c $(*).c
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%.o: %.cxx
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@#printf " CXX $(*).cxx\n"
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$(Q)$(CXX) $(TGT_CXXFLAGS) $(CXXFLAGS) $(TGT_CPPFLAGS) $(CPPFLAGS) -o $(*).o -c $(*).cxx
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%.o: %.cpp
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@#printf " CXX $(*).cpp\n"
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$(Q)$(CXX) $(TGT_CXXFLAGS) $(CXXFLAGS) $(TGT_CPPFLAGS) $(CPPFLAGS) -o $(*).o -c $(*).cpp
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clean:
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@#printf " CLEAN\n"
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$(Q)$(RM) *.o *.d *.elf *.bin *.hex *.srec *.list *.map generated.* ${OBJS} ${OBJS:%.o:%.d}
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stylecheck: $(STYLECHECKFILES:=.stylecheck)
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styleclean: $(STYLECHECKFILES:=.styleclean)
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# the cat is due to multithreaded nature - we like to have consistent chunks of text on the output
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%.stylecheck: %
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$(Q)$(SCRIPT_DIR)$(STYLECHECK) $(STYLECHECKFLAGS) $* > $*.stylecheck; \
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if [ -s $*.stylecheck ]; then \
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cat $*.stylecheck; \
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else \
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rm -f $*.stylecheck; \
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fi;
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%.styleclean:
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$(Q)rm -f $*.stylecheck;
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%.stlink-flash: %.bin
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@printf " FLASH $<\n"
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$(STFLASH) write $(*).bin 0x8000000
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ifeq ($(STLINK_PORT),)
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ifeq ($(BMP_PORT),)
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ifeq ($(OOCD_FILE),)
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%.flash: %.elf
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@printf " FLASH $<\n"
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(echo "halt; program $(realpath $(*).elf) verify reset" | nc -4 localhost 4444 2>/dev/null) || \
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$(OOCD) -f interface/$(OOCD_INTERFACE).cfg \
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-f target/$(OOCD_TARGET).cfg \
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-c "program $(*).elf verify reset exit" \
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$(NULL)
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else
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%.flash: %.elf
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@printf " FLASH $<\n"
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(echo "halt; program $(realpath $(*).elf) verify reset" | nc -4 localhost 4444 2>/dev/null) || \
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$(OOCD) -f $(OOCD_FILE) \
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-c "program $(*).elf verify reset exit" \
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$(NULL)
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endif
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else
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%.flash: %.elf
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@printf " GDB $(*).elf (flash)\n"
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$(GDB) --batch \
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-ex 'target extended-remote $(BMP_PORT)' \
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-x $(SCRIPT_DIR)/black_magic_probe_flash.scr \
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$(*).elf
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endif
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else
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%.flash: %.elf
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@printf " GDB $(*).elf (flash)\n"
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$(GDB) --batch \
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-ex 'target extended-remote $(STLINK_PORT)' \
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-x $(SCRIPT_DIR)/stlink_flash.scr \
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$(*).elf
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endif
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.PHONY: images clean stylecheck styleclean elf bin hex srec list
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-include $(OBJS:.o=.d)
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